Add in app mesage lifecycle handler

android/src/main/java/com/onesignal/flutter/OneSignalPlugin.java

@@ -7,6 +7,8 @@
 import com.onesignal.OSEmailSubscriptionObserver;
 import com.onesignal.OSEmailSubscriptionStateChanges;
 import com.onesignal.OSInAppMessageAction;
+import com.onesignal.OSInAppMessage;
+import com.onesignal.OSInAppMessageLifecycleHandler;
 import com.onesignal.OSNotification;
 import com.onesignal.OSNotificationOpenedResult;
 import com.onesignal.OSNotificationReceivedEvent;
@@ -57,6 +59,7 @@ public class OneSignalPlugin
   private boolean hasSetRequiresPrivacyConsent = false;
   private boolean waitingForUserPrivacyConsent = false;
 
+
   private final HashMap<String, OSNotificationReceivedEvent> notificationReceivedEventCache = new HashMap<>();
 
   public OneSignalPlugin() {
@@ -183,6 +186,7 @@ private void setAppId(MethodCall call, Result reply) {
     OneSignal.setInAppMessageClickHandler(this);
     OneSignal.initWithContext(context);
     OneSignal.setAppId(appId);
+    setInAppMessageLifecycleHandler();
 
     if (hasSetRequiresPrivacyConsent && !OneSignal.userProvidedPrivacyConsent())
       this.waitingForUserPrivacyConsent = true;
@@ -409,6 +413,31 @@ public void inAppMessageClicked(OSInAppMessageAction action) {
     invokeMethodOnUiThread("OneSignal#handleClickedInAppMessage", OneSignalSerializer.convertInAppMessageClickedActionToMap(action));
   }
 
+  /* in app message lifecycle */
+  public void setInAppMessageLifecycleHandler() {
+    OneSignal.setInAppMessageLifecycleHandler(new OSInAppMessageLifecycleHandler() {
+        @Override
+        public void onWillDisplayInAppMessage(OSInAppMessage message) { 
+          invokeMethodOnUiThread("OneSignal#onWillDisplayInAppMessage", OneSignalSerializer.convertInAppMessageToMap(message));
+        }
+
+        @Override
+        public void onDidDisplayInAppMessage(OSInAppMessage message) {
+          invokeMethodOnUiThread("OneSignal#onDidDisplayInAppMessage", OneSignalSerializer.convertInAppMessageToMap(message));
+        }
+
+        @Override
+        public void onWillDismissInAppMessage(OSInAppMessage message) {
+          invokeMethodOnUiThread("OneSignal#onWillDismissInAppMessage", OneSignalSerializer.convertInAppMessageToMap(message));
+        }
+
+        @Override
+        public void onDidDismissInAppMessage(OSInAppMessage message) {
+          invokeMethodOnUiThread("OneSignal#onDidDismissInAppMessage", OneSignalSerializer.convertInAppMessageToMap(message));
+        }
+    });
+  }
+
   @Override
   public void notificationWillShowInForeground(OSNotificationReceivedEvent notificationReceivedEvent) {
     if (!this.hasSetNotificationWillShowInForegroundHandler) {

android/src/main/java/com/onesignal/flutter/OneSignalSerializer.java

@@ -6,6 +6,7 @@
 import com.onesignal.OSEmailSubscriptionState;
 import com.onesignal.OSEmailSubscriptionStateChanges;
 import com.onesignal.OSInAppMessageAction;
+import com.onesignal.OSInAppMessage;
 import com.onesignal.OSNotification;
 import com.onesignal.OSNotificationAction;
 import com.onesignal.OSNotificationOpenedResult;
@@ -232,6 +233,14 @@ static HashMap<String, Object> convertInAppMessageClickedActionToMap(OSInAppMess
         return hash;
     }
 
+    static HashMap<String, Object> convertInAppMessageToMap(OSInAppMessage message) {
+        HashMap<String, Object> hash = new HashMap<>();
+
+        hash.put("message_id", message.getMessageId());
+
+        return hash;
+    }
+
     static HashMap<String, Object> convertNotificationReceivedEventToMap(OSNotificationReceivedEvent notificationReceivedEvent) throws JSONException {
         return convertNotificationToMap(notificationReceivedEvent.getNotification());
     }

example/lib/main.dart

@@ -83,6 +83,22 @@ class _MyAppState extends State<MyApp> {
       print("SMS SUBSCRIPTION STATE CHANGED ${changes.jsonRepresentation()}");
     });
 
+    OneSignal.shared.setOnWillDisplayInAppMessageHandler((message) {
+      print("ON WILL DISPLAY IN APP MESSAGE ${message.messageId}");
+    });
+
+    OneSignal.shared.setOnDidDisplayInAppMessageHandler((message) {
+      print("ON DID DISPLAY IN APP MESSAGE ${message.messageId}");
+    });
+
+    OneSignal.shared.setOnWillDismissInAppMessageHandler((message) {
+      print("ON WILL DISMISS IN APP MESSAGE ${message.messageId}");
+    });
+
+    OneSignal.shared.setOnDidDismissInAppMessageHandler((message) {
+      print("ON DID DISMISS IN APP MESSAGE ${message.messageId}");
+    });
+
     // NOTE: Replace with your own app ID from https://www.onesignal.com
     await OneSignal.shared
         .setAppId("380dc082-5231-4cc2-ab51-a03da5a0e4c2");

ios/Classes/OSFlutterCategories.h

@@ -43,6 +43,10 @@
 - (NSDictionary *)toJson;
 @end
 
+@interface OSInAppMessage (Flutter)
+- (NSDictionary *)toJson;
+@end
+
 @interface NSError (Flutter)
 - (FlutterError *)flutterError;
 @end

ios/Classes/OSFlutterCategories.m

@@ -97,6 +97,16 @@ - (NSDictionary *)toJson {
 }
 @end
 
+@implementation OSInAppMessage (Flutter)
+- (NSDictionary *)toJson {
+    NSMutableDictionary *json = [NSMutableDictionary new];
+
+    json[@"message_id"] = self.messageId;
+
+    return json;
+}
+@end
+
 @implementation NSError (Flutter)
 - (FlutterError *)flutterError {
     return [FlutterError errorWithCode:[NSString stringWithFormat:@"%i", (int)self.code] message:self.localizedDescription details:nil];

ios/Classes/OneSignalPlugin.h

@@ -28,7 +28,7 @@
 #import <Flutter/Flutter.h>
 #import <OneSignal/OneSignal.h>
 
-@interface OneSignalPlugin : NSObject<FlutterPlugin, OSSubscriptionObserver, OSPermissionObserver, OSEmailSubscriptionObserver, OSSMSSubscriptionObserver>
+@interface OneSignalPlugin : NSObject<FlutterPlugin, OSSubscriptionObserver, OSPermissionObserver, OSEmailSubscriptionObserver, OSSMSSubscriptionObserver, OSInAppMessageLifecycleHandler>
 
 // Do NOT initialize instances of this class.
 // You must only reference the shared instance.

ios/Classes/OneSignalPlugin.m

@@ -55,7 +55,6 @@ it will add the observers (ie. subscription)
 
 @property (strong, nonatomic) NSMutableDictionary* notificationCompletionCache;
 @property (strong, nonatomic) NSMutableDictionary* receivedNotificationCache;
-
 @end
 
 @implementation OneSignalPlugin
@@ -163,6 +162,8 @@ - (void)setAppId:(FlutterMethodCall *)call withResult:(FlutterResult)result {
 
     [OneSignal setAppId:call.arguments[@"appId"]];
 
+    [OneSignal setInAppMessageLifecycleHandler: self];
+
     // If the user has required privacy consent, the SDK will not
     // add these observers. So we should delay adding the observers
     // until consent has been provided.
@@ -399,6 +400,23 @@ - (void)handleInAppMessageClicked:(OSInAppMessageAction *)action {
     [self.channel invokeMethod:@"OneSignal#handleClickedInAppMessage" arguments:action.toJson];
 }
 
+#pragma mark OSInAppMessageLifeCycleHandler
+- (void)onWillDisplayInAppMessage:(OSInAppMessage *) result {
+    [self.channel invokeMethod:@"OneSignal#onWillDisplayInAppMessage" arguments:result.toJson];
+}
+
+- (void)onDidDisplayInAppMessage:(OSInAppMessage *) result {
+    [self.channel invokeMethod:@"OneSignal#onDidDisplayInAppMessage" arguments:result.toJson];
+}
+
+- (void)onWillDismissInAppMessage:(OSInAppMessage *) result {
+    [self.channel invokeMethod:@"OneSignal#onWillDismissInAppMessage" arguments:result.toJson];
+}
+
+- (void)onDidDismissInAppMessage:(OSInAppMessage *) result {
+    [self.channel invokeMethod:@"OneSignal#onDidDismissInAppMessage" arguments:result.toJson];
+}
+
 #pragma mark OSSubscriptionObserver
 - (void)onOSSubscriptionChanged:(OSSubscriptionStateChanges *)stateChanges {
    [self.channel invokeMethod:@"OneSignal#subscriptionChanged" arguments: stateChanges.toDictionary];

ios/onesignal_flutter.podspec

@@ -13,7 +13,7 @@ Pod::Spec.new do |s|
   s.source_files = 'Classes/**/*'
   s.public_header_files = 'Classes/**/*.h'
   s.dependency 'Flutter'
-  s.dependency 'OneSignalXCFramework', '3.9.1'
+  s.dependency 'OneSignalXCFramework', '3.10.0'
   s.ios.deployment_target = '9.0'
   s.static_framework = true
 end

lib/onesignal_flutter.dart

@@ -25,6 +25,10 @@ typedef void EmailSubscriptionChangeHandler(OSEmailSubscriptionStateChanges chan
 typedef void SMSSubscriptionChangeHandler(OSSMSSubscriptionStateChanges changes);
 typedef void PermissionChangeHandler(OSPermissionStateChanges changes);
 typedef void InAppMessageClickedHandler(OSInAppMessageAction action);
+typedef void OnWillDisplayInAppMessageHandler(OSInAppMessage message);
+typedef void OnDidDisplayInAppMessageHandler(OSInAppMessage message);
+typedef void OnWillDismissInAppMessageHandler(OSInAppMessage message);
+typedef void OnDidDismissInAppMessageHandler(OSInAppMessage message);
 typedef void NotificationWillShowInForegroundHandler(OSNotificationReceivedEvent event);
 
 class OneSignal {
@@ -47,6 +51,10 @@ class OneSignal {
   SMSSubscriptionChangeHandler? _onSMSSubscriptionChangedHandler;
   PermissionChangeHandler? _onPermissionChangedHandler;
   InAppMessageClickedHandler? _onInAppMessageClickedHandler;
+  OnWillDisplayInAppMessageHandler? _onWillDisplayInAppMessageHandler;
+  OnDidDisplayInAppMessageHandler? _onDidDisplayInAppMessageHandler;
+  OnWillDismissInAppMessageHandler? _onWillDismissInAppMessageHandler;
+  OnDidDismissInAppMessageHandler? _onDidDismissInAppMessageHandler;
   NotificationWillShowInForegroundHandler? _onNotificationWillShowInForegroundHandler;
 
   // constructor method
@@ -114,6 +122,34 @@ class OneSignal {
     _channel.invokeMethod("OneSignal#initInAppMessageClickedHandlerParams");
   }
 
+  /// The in app message will display handler is called whenever the in app message
+  /// is about to be displayed
+  void setOnWillDisplayInAppMessageHandler(
+      OnWillDisplayInAppMessageHandler handler) {
+    _onWillDisplayInAppMessageHandler = handler;
+  }
+
+  /// The in app message did display handler is called whenever the in app message
+  /// is displayed
+  void setOnDidDisplayInAppMessageHandler(
+      OnDidDisplayInAppMessageHandler handler) {
+    _onDidDisplayInAppMessageHandler = handler;
+  }
+
+  /// The in app message will dismiss handler is called whenever the in app message
+  /// is about to be dismissed
+  void setOnWillDismissInAppMessageHandler(
+      OnWillDismissInAppMessageHandler handler) {
+    _onWillDismissInAppMessageHandler = handler;
+  }
+
+  /// The in app message did dismiss handler is called whenever the in app message
+  /// is dismissed
+  void setOnDidDismissInAppMessageHandler(
+      OnDidDismissInAppMessageHandler handler) {
+    _onDidDismissInAppMessageHandler = handler;
+  }
+
   /// The notification foreground handler is called whenever a notification arrives
   /// and the application is in foreground
   void setNotificationWillShowInForegroundHandler(NotificationWillShowInForegroundHandler handler) {
@@ -428,6 +464,22 @@ class OneSignal {
         this._onInAppMessageClickedHandler != null) {
       this._onInAppMessageClickedHandler!(
           OSInAppMessageAction(call.arguments.cast<String, dynamic>()));
+    } else if (call.method == 'OneSignal#onWillDisplayInAppMessage' &&
+        this._onWillDisplayInAppMessageHandler != null) {
+      this._onWillDisplayInAppMessageHandler!(
+          OSInAppMessage(call.arguments.cast<String, dynamic>()));
+    } else if (call.method == 'OneSignal#onDidDisplayInAppMessage' &&
+        this._onDidDisplayInAppMessageHandler != null) {
+      this._onDidDisplayInAppMessageHandler!(
+          OSInAppMessage(call.arguments.cast<String, dynamic>()));
+    } else if (call.method == 'OneSignal#onWillDismissInAppMessage' &&
+        this._onWillDismissInAppMessageHandler != null) {
+      this._onWillDismissInAppMessageHandler!(
+          OSInAppMessage(call.arguments.cast<String, dynamic>()));
+    } else if (call.method == 'OneSignal#onDidDismissInAppMessage' &&
+        this._onDidDismissInAppMessageHandler != null) {
+      this._onDidDismissInAppMessageHandler!(
+          OSInAppMessage(call.arguments.cast<String, dynamic>()));
     } else if (call.method == 'OneSignal#handleNotificationWillShowInForeground' &&
         this._onNotificationWillShowInForegroundHandler != null) {
       this._onNotificationWillShowInForegroundHandler!(

lib/src/in_app_message.dart

@@ -34,3 +34,17 @@ class OSInAppMessageAction extends JSONStringRepresentable {
   }
 
 }
+
+class OSInAppMessage extends JSONStringRepresentable {
+  String? messageId;
+
+  OSInAppMessage(Map<String, dynamic> json) {
+    this.messageId = json["message_id"];
+  } 
+
+  String jsonRepresentation() {
+    return convertToJsonString({
+      'message_id': this.messageId
+    });
+  }
+}